Many have weighed in on Eric Holder's "cowards" slur. He obviously hasn't paid much attention to college campuses, where the obsession with race permeates departments, curricula, hiring, faculty profile, student events, funding, etc. Bumper-sticker identification and hair-trigger readiness to accuse someone of racism to further a particular ideological or even personal agenda are now 30 years old and institutionalized in higher education. He is right on one count, however — in the university, public schools, journalism at large, the foundations, and politics, there is a reluctance in one aspect to broach the subject. It is absolutely taboo to suggest that...